US4978151A - Latch-operating mechanism for a panic egress device - Google Patents

Latch-operating mechanism for a panic egress device Download PDF

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Publication number
US4978151A
US4978151A US07/394,886 US39488689A US4978151A US 4978151 A US4978151 A US 4978151A US 39488689 A US39488689 A US 39488689A US 4978151 A US4978151 A US 4978151A
Authority
US
United States
Prior art keywords
chassis
linkage
housing
shoes
latch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/394,886
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English (en)
Inventor
Michael D. Coleman
Kerry W. Stadtfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Von Duprin LLC
Original Assignee
Von Duprin LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Von Duprin LLC filed Critical Von Duprin LLC
Assigned to VON DUPRIN, INC. reassignment VON DUPRIN, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: COLEMAN, MICHAEL D., STADTFELD, KERRY W.
Priority to US07/394,886 priority Critical patent/US4978151A/en
Priority to CA002023040A priority patent/CA2023040C/en
Priority to IT02126790A priority patent/IT1248444B/it
Priority to JP02214492A priority patent/JP3108081B2/ja
Priority to GB9017978A priority patent/GB2235947B/en
Priority to FR9010438A priority patent/FR2651012B1/fr
Priority to DE4026155A priority patent/DE4026155C2/de
Publication of US4978151A publication Critical patent/US4978151A/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Assigned to VON DUPRIN LLC reassignment VON DUPRIN LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: VON DUPRIN, INC.
Assigned to SCHLAGE LOCK COMPANY LLC reassignment SCHLAGE LOCK COMPANY LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VON DUPRIN LLC
Assigned to VON DUPRIN LLC reassignment VON DUPRIN LLC CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE FROM SCHLAGE LOCK COMPANY LLC TO VON DUPRIN LLC PREVIOUSLY RECORDED ON REEL 031074 FRAME 0596. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: VON DUPRIN LLC
Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: SCHLAGE LOCK COMPANY LLC
Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: SCHLAGE LOCK COMPANY LLC
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/1046—Panic bars
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/1006—Locks or fastenings for special use for panic or emergency doors of the vertical rod type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/62—Lost motion connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/65—Emergency or safety
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0801—Multiple
    • Y10T292/0822—Emergency operating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0908—Emergency operating means

Definitions

  • This invention pertains to panic egress devices, and in particular to latch-operating mechanisms therefor.
  • Panic egress devices are used for (a) normal egress, and (b) conjunction with a high security latching. That is, from the outside of the door on which the panic egress device is mounted, the high security latching, and the panic egress latching must operate independently. If the high security latching is compromised, or operated by a key or combination, this should not release the panic egress latching; similarly, if the panic egress latching is compromised, or operated by a key or combination, this should be ineffective on the high security latching.
  • a primary latch bolt which may serve as a high security element shares a common linkage with secondary latches, i.e., concealed or externally-mounted vertical latches. Therefore, when the action rod of the mechanism is translated, all the latches are withdrawn. Too, then, if the primary latch bolt is retracted, from outside the door--by whatever means--the linkage causes the secondary latches to retract, and vice versa (if the secondary latches are caused to retract, from outside the door, the primary latch bolt will also retract).
  • latches i.e., a primary latch bolt, and secondary latches
  • a latch-operating mechanism for a panic egress device comprising a chassis; a housing coupled to said chassis; a primary latch bolt pivotably coupled to said housing; output shoes, for secondary latches, movably engaged with said chassis; and bellcranks pivotably mounted on said chassis; wherein first ends of said bellcranks are pivotably coupled to said shoes; and including first linkage means coupled to said primary latch bolt for effecting movement of said bolt relative to said housing; and second linkage means coupled to second ends of said bellcranks for effecting movement of said shoes relative to said chassis.
  • FIG. 1 is a plan view of a prior art, latch-operating mechanism in which, however, the primary latch bolt and latch bolt link are not shown (for clarity of understanding), and the housing top is removed;
  • FIG. 2 is a side elevational view of the mechanism of FIG. 1; this view shows the latch bolt and its link, but the housing is shown only in phantom;
  • FIGS. 3 and 4 correspond to FIGS. 1 and 2, respectively, but depict the novel latch-operating mechanism according to an embodiment thereof.
  • a prior art latch-operating mechanism 10 comprises a chassis 12 to which is mounted a housing 14.
  • the chassis 12 has a pair of guide ways 16 and 18 which slidably receive a pair of secondary latch output shoes 20 and 22.
  • the shoes 20 and 22 have projecting fingers 24 which, as detailed in the aforesaid referenced and incorporated U.S. patent, are used to operate secondary, vertical latches (not shown).
  • Bellcranks 26 and 28 are pivotably mounted onto the chassis 12, at pivot points 30 and 32, respectively. First ends 34 of the bellcranks are pivotably coupled to innermost ends 36 of the shoes 20 and 22, and the other ends 38 of the bellcranks are captured in a keeper 40.
  • the keeper 40 is an underslung element which is integral with a control link 42.
  • a primary latch bolt 44 is pivotably mounted to the housing 14, by means of a pivot pin 46; too another pin 48 couples the bolt 44 to a link 50.
  • the latter is pinned, via a pin 52, to a bifurcation end of the control link 42.
  • the control link 42 is coupled to a control linkage 54, and the latter is coupled to an action rod 56.
  • the rod 56 as explained in the aforesaid patent, is translated by a push pad (not shown). With translation of the rod 56, then, to the left (as shown in FIGS. 1 and 2), coincidentally the bolt 44 and the shoes 20 and 22 will be moved; the bolt 44 will retract, and the shoes 20 and 22 will close toward the housing 14. Biasing means (not shown) within the housing 14 urge the bolt to return to the extended disposition (as depicted in FIG. 2).
  • the novel mechanism 10a shown in FIGS. 3 and 4, does offer a high security latching, and yet it provides for ready egress.
  • FIGS. 3 and 4 Same or similar elements and components shown in FIGS. 3 and 4, carry some or similar index numbers as their complements in FIGS. 1 and 2.
  • FIG. 4 (as well as in FIG. 2 ) bellcranks 26 and 28, and the shoes 20 and 22 are not shown (for clarity of understanding).
  • control link 42a ends in a same bifurcation in which the link 50 is pinned, via pin 52, but it is devoid of a keeper (such as keeper 40 in FIG. 1).
  • Link 42a is directly coupled only to the primary latch bolt 44.
  • the ends 38 of the bellcranks 26 and 28, in this embodiment of the invention, are coupled to a web 58 which terminates a linkage member 60.
  • Web 58 underlies the link 42a, and is slidably disposed on the chassis 12.
  • the remote end 62 of member 60 has a slot 64 formed therein.
  • a pin 66 fixed in the action rod 26a, projects therefrom and intrudes into the slot 64.
  • the linkage member 60 is coupled to the action rod 56a for coincident movement with the action rod 56a, when the mechanism is operated, from inside the door (to which it is mounted), for egress. Translation of the action rod 56a will retract the bolt 44 and the vertical latches (not shown) which are controlled by the shoes 20 and 22. However, the mechanism 10a provides for high security, from outside the door, in that a retraction of the bolt 44--by whatever means--will not retract the vertical latches.
  • the control link 42a , and control linkage 54 will move to the left (as viewed in FIGS. 3 and 4), but the control linkage 54 also has a slot 68 formed therein on both sides thereof.
  • Mechanism 10a therefore, requires that the vertical latches and the latch bolt 44 to be retracted together before entry can be gotten from outside the door. Even so, translation of the action rod 56a, from inside the door, gives full egress.
  • the disposition of the pin 66 in the outermost end of the slot 64 causes the linkage member 60, which controls the vertical latches, to translate with the action rod 56a; the latter, of course, controls the latch bolt 44.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lock And Its Accessories (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Gates (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Forklifts And Lifting Vehicles (AREA)
US07/394,886 1989-08-17 1989-08-17 Latch-operating mechanism for a panic egress device Expired - Lifetime US4978151A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US07/394,886 US4978151A (en) 1989-08-17 1989-08-17 Latch-operating mechanism for a panic egress device
CA002023040A CA2023040C (en) 1989-08-17 1990-08-09 Latch-operating mechanism for a panic egress device
IT02126790A IT1248444B (it) 1989-08-17 1990-08-13 Meccanismo di comando di chiavistelli per dispositivo di uscita di sicurezza
JP02214492A JP3108081B2 (ja) 1989-08-17 1990-08-15 非常退出装置のための掛け金作動機構
GB9017978A GB2235947B (en) 1989-08-17 1990-08-16 A latch-operating mechanism for a panic egress device
DE4026155A DE4026155C2 (de) 1989-08-17 1990-08-17 Riegelbetätigungsvorrichtung für Türen o. dgl.
FR9010438A FR2651012B1 (fr) 1989-08-17 1990-08-17 Mecanisme de commande de verrou pour issue de secours

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/394,886 US4978151A (en) 1989-08-17 1989-08-17 Latch-operating mechanism for a panic egress device

Publications (1)

Publication Number Publication Date
US4978151A true US4978151A (en) 1990-12-18

Family

ID=23560794

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/394,886 Expired - Lifetime US4978151A (en) 1989-08-17 1989-08-17 Latch-operating mechanism for a panic egress device

Country Status (7)

Country Link
US (1) US4978151A (it)
JP (1) JP3108081B2 (it)
CA (1) CA2023040C (it)
DE (1) DE4026155C2 (it)
FR (1) FR2651012B1 (it)
GB (1) GB2235947B (it)
IT (1) IT1248444B (it)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590917A (en) * 1995-09-13 1997-01-07 Mas-Hamilton Group High security push-to-exit pedestrian door control
US6009732A (en) * 1998-04-07 2000-01-04 Detex Corporation Panic exit device
US20030222461A1 (en) * 2002-03-29 2003-12-04 Savio S.P.A. Anti-panic opening system for doors
US6732664B2 (en) * 2000-08-07 2004-05-11 Charles H. Worrall Key and combination locking mechanism
US20060010942A1 (en) * 2004-07-16 2006-01-19 Von Duprin, Inc, Control for exit device
WO2006092009A1 (en) * 2005-03-02 2006-09-08 Burgundy Trial Pty. Ltd. Locking device
USD541633S1 (en) 2005-07-15 2007-05-01 Von Duprin, Inc. Exit device centercase cover
USD542626S1 (en) 2005-07-15 2007-05-15 Von Duprin, Inc. Exit device centercase cover
US20100066102A1 (en) * 2008-09-17 2010-03-18 Chun-Meng Shen Adjustable Sliding Device for Panic Exit Door Lock
USD668930S1 (en) * 2011-09-16 2012-10-16 I-Tek Metal Mfg. Co. Ltd. End cap for a touch bar for a passageway door lock
US20130291606A1 (en) * 2012-05-07 2013-11-07 Remi Emiel Van Parys Panic lock
US20170081882A1 (en) * 2015-09-18 2017-03-23 Thase Enterprise Co., Ltd. Door latch assembly
US20190161993A1 (en) * 2017-11-29 2019-05-30 Hanchett Entry Systems, Inc. Interchangeable Latch Assembly for an Exit Device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008004416U1 (de) * 2008-04-01 2009-08-06 Wilka Schließtechnik GmbH Treibriegelanordnung mit Treibstangenumlenkstück

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US981843A (en) * 1910-11-23 1911-01-17 Herman Davis Combined lock and latch.
US2594253A (en) * 1946-06-11 1952-04-22 Nat Pneumatic Co Inc Emergency release mechanism for exit doors
US3345099A (en) * 1965-09-14 1967-10-03 Sargent & Greenleaf Panic exit device
US3730574A (en) * 1971-04-19 1973-05-01 Von Duprin Inc Latch bolt retractor mechanism
US3819213A (en) * 1972-09-29 1974-06-25 Eaton Corp Exit device
US4601499A (en) * 1984-07-03 1986-07-22 Von Duprin, Inc. Operating mechanism for a closure latching assembly
US4741563A (en) * 1986-04-07 1988-05-03 Von Duprin, Inc. Center case assembly, and a universal, center case sub-assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663047A (en) * 1970-08-05 1972-05-16 Von Duprin Inc Right-line movement panic exit device
NL7904962A (nl) * 1979-05-30 1980-12-02 Lermer App Gmbh Deursluiting voor een rechthoekige container in het bijzonder voor de toepassing bij de vliegtuigbouw.
GB2119007B (en) * 1982-03-03 1985-05-09 Goodwin W J & Son Ltd Locking devices for fitting to latch machanisms

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US981843A (en) * 1910-11-23 1911-01-17 Herman Davis Combined lock and latch.
US2594253A (en) * 1946-06-11 1952-04-22 Nat Pneumatic Co Inc Emergency release mechanism for exit doors
US3345099A (en) * 1965-09-14 1967-10-03 Sargent & Greenleaf Panic exit device
US3730574A (en) * 1971-04-19 1973-05-01 Von Duprin Inc Latch bolt retractor mechanism
US3819213A (en) * 1972-09-29 1974-06-25 Eaton Corp Exit device
US4601499A (en) * 1984-07-03 1986-07-22 Von Duprin, Inc. Operating mechanism for a closure latching assembly
US4741563A (en) * 1986-04-07 1988-05-03 Von Duprin, Inc. Center case assembly, and a universal, center case sub-assembly

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590917A (en) * 1995-09-13 1997-01-07 Mas-Hamilton Group High security push-to-exit pedestrian door control
US6009732A (en) * 1998-04-07 2000-01-04 Detex Corporation Panic exit device
US6205825B1 (en) 1998-04-07 2001-03-27 Detex Corporation Panic exit device mounting plate
US6532777B2 (en) 1998-04-07 2003-03-18 Detex Corporation Panic exit device mounting plate
US6732664B2 (en) * 2000-08-07 2004-05-11 Charles H. Worrall Key and combination locking mechanism
US20030222461A1 (en) * 2002-03-29 2003-12-04 Savio S.P.A. Anti-panic opening system for doors
US6953211B2 (en) * 2002-03-29 2005-10-11 Savio S.P.A. Anti-panic opening system for doors
US20060010942A1 (en) * 2004-07-16 2006-01-19 Von Duprin, Inc, Control for exit device
US7249477B2 (en) 2004-07-16 2007-07-31 Von Duprin, Inc. Control for exit device
WO2006092009A1 (en) * 2005-03-02 2006-09-08 Burgundy Trial Pty. Ltd. Locking device
USD542626S1 (en) 2005-07-15 2007-05-15 Von Duprin, Inc. Exit device centercase cover
USD541633S1 (en) 2005-07-15 2007-05-01 Von Duprin, Inc. Exit device centercase cover
US20100066102A1 (en) * 2008-09-17 2010-03-18 Chun-Meng Shen Adjustable Sliding Device for Panic Exit Door Lock
USD668930S1 (en) * 2011-09-16 2012-10-16 I-Tek Metal Mfg. Co. Ltd. End cap for a touch bar for a passageway door lock
US20130291606A1 (en) * 2012-05-07 2013-11-07 Remi Emiel Van Parys Panic lock
US9074391B2 (en) * 2012-05-07 2015-07-07 Remi Emiel Van Parys Panic lock
US20170081882A1 (en) * 2015-09-18 2017-03-23 Thase Enterprise Co., Ltd. Door latch assembly
US20190161993A1 (en) * 2017-11-29 2019-05-30 Hanchett Entry Systems, Inc. Interchangeable Latch Assembly for an Exit Device
US11566449B2 (en) * 2017-11-29 2023-01-31 Hanchett Entry Systems, Inc. Interchangeable latch assembly for an exit device
US20230151645A1 (en) * 2017-11-29 2023-05-18 Hanchett Entry Systems, Inc. Interchangeable Latch Assembly for an Exit Device
US12366092B2 (en) * 2017-11-29 2025-07-22 Hanchett Entry Systems, Inc. Interchangeable latch assembly for an exit device

Also Published As

Publication number Publication date
CA2023040C (en) 1997-10-07
GB9017978D0 (en) 1990-10-03
JPH03119276A (ja) 1991-05-21
GB2235947B (en) 1993-11-03
JP3108081B2 (ja) 2000-11-13
IT9021267A1 (it) 1992-02-13
IT1248444B (it) 1995-01-19
IT9021267A0 (it) 1990-08-13
CA2023040A1 (en) 1991-02-18
GB2235947A (en) 1991-03-20
FR2651012A1 (fr) 1991-02-22
DE4026155C2 (de) 1999-10-14
DE4026155A1 (de) 1991-02-21
FR2651012B1 (fr) 1994-03-25

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